Observation of $D^0 - \overline{D}^0$ oscillations

Авторы: LHCb Collaboration (R A.(., Образцов В.Ф.
Журнал: Physical Review Letters
Том: 110
Номер: 101802
Год издания: 2013
Издательство: American Physical Society
Местоположение издательства: United States
DOI: 10.1103/PhysRevLett.110.101802
Аннотация: We report a measurement of the time-dependent ratio of D0→K+π- to D0→K-π+ decay rates in D*+-tagged events using 1.0 fb-1 of integrated luminosity recorded by the LHCb experiment. We measure the mixing parameters x′2=(-0.9±1.3)×10-4, y′=(7.2±2.4)×10-3, and the ratio of doubly-Cabibbo-suppressed to Cabibbo-favored decay rates RD=(3.52±0.15)×10-3, where the uncertainties include statistical and systematic sources. The result excludes the no-mixing hypothesis with a probability corresponding to 9.1 standard deviations and represents the first observation of D0-D¯0 oscillations from a single measurement.
Добавил в систему: Образцов Владимир Федорович

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